Move check_input_array from pylibraft

With the changes in rapidsai/raft#2498 we no longer
have a pylibraft.neighbors module - but were still using a utility function
`_check_input_array` from it in cuvs. Move this over to cuvs to unblock ci

python/cuvs/cuvs/neighbors/brute_force/brute_force.pyx

@@ -31,9 +31,9 @@ from cuvs.distance_type cimport cuvsDistanceType
 from pylibraft.common import auto_convert_output, cai_wrapper, device_ndarray
 from pylibraft.common.cai_wrapper import wrap_array
 from pylibraft.common.interruptible import cuda_interruptible
-from pylibraft.neighbors.common import _check_input_array
 
 from cuvs.distance import DISTANCE_TYPES
+from cuvs.neighbors.common import check_input_array
 
 from cuvs.common.c_api cimport cuvsResources_t
 

python/cuvs/cuvs/neighbors/cagra/cagra.pyx

@@ -32,7 +32,8 @@ from cuvs.common cimport cydlpack
 from pylibraft.common import auto_convert_output, cai_wrapper, device_ndarray
 from pylibraft.common.cai_wrapper import wrap_array
 from pylibraft.common.interruptible import cuda_interruptible
-from pylibraft.neighbors.common import _check_input_array
+
+from cuvs.neighbors.common import check_input_array
 
 from libc.stdint cimport (
     int8_t,

python/cuvs/cuvs/neighbors/common.py

@@ -0,0 +1,36 @@
+#
+# Copyright (c) 2024, NVIDIA CORPORATION.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+def check_input_array(cai, exp_dt, exp_rows=None, exp_cols=None):
+    if cai.dtype not in exp_dt:
+        raise TypeError("dtype %s not supported" % cai.dtype)
+
+    if not cai.c_contiguous:
+        raise ValueError("Row major input is expected")
+
+    if exp_cols is not None and cai.shape[1] != exp_cols:
+        raise ValueError(
+            "Incorrect number of columns, expected {} got {}".format(
+                exp_cols, cai.shape[1]
+            )
+        )
+
+    if exp_rows is not None and cai.shape[0] != exp_rows:
+        raise ValueError(
+            "Incorrect number of rows, expected {} , got {}".format(
+                exp_rows, cai.shape[0]
+            )
+        )

python/cuvs/cuvs/neighbors/filters/filters.pyx

@@ -20,11 +20,11 @@ import numpy as np
 from libc.stdint cimport uintptr_t
 
 from cuvs.common cimport cydlpack
+from cuvs.neighbors.common import check_input_array
 
 from .filters cimport BITMAP, NO_FILTER, cuvsFilter
 
 from pylibraft.common.cai_wrapper import wrap_array
-from pylibraft.neighbors.common import _check_input_array
 
 
 cdef class Prefilter:

python/cuvs/cuvs/neighbors/hnsw/hnsw.pyx

@@ -21,6 +21,7 @@ from libcpp.string cimport string
 
 from cuvs.common.exceptions import check_cuvs
 from cuvs.common.resources import auto_sync_resources
+from cuvs.neighbors.common import check_input_array
 
 from cuvs.common cimport cydlpack
 
@@ -36,7 +37,6 @@ import uuid
 from pylibraft.common import auto_convert_output
 from pylibraft.common.cai_wrapper import wrap_array
 from pylibraft.common.interruptible import cuda_interruptible
-from pylibraft.neighbors.common import _check_input_array
 
 
 cdef class SearchParams:

python/cuvs/cuvs/neighbors/ivf_flat/ivf_flat.pyx

@@ -31,9 +31,9 @@ from cuvs.distance_type cimport cuvsDistanceType
 from pylibraft.common import auto_convert_output, cai_wrapper, device_ndarray
 from pylibraft.common.cai_wrapper import wrap_array
 from pylibraft.common.interruptible import cuda_interruptible
-from pylibraft.neighbors.common import _check_input_array
 
 from cuvs.distance import DISTANCE_TYPES
+from cuvs.neighbors.common import check_input_array
 
 from libc.stdint cimport (
     int8_t,

python/cuvs/cuvs/neighbors/ivf_pq/ivf_pq.pyx

@@ -31,9 +31,9 @@ from cuvs.distance_type cimport cuvsDistanceType
 from pylibraft.common import auto_convert_output, cai_wrapper, device_ndarray
 from pylibraft.common.cai_wrapper import wrap_array
 from pylibraft.common.interruptible import cuda_interruptible
-from pylibraft.neighbors.common import _check_input_array
 
 from cuvs.distance import DISTANCE_TYPES
+from cuvs.neighbors.common import check_input_array
 
 from libc.stdint cimport (
     int8_t,

python/cuvs/cuvs/neighbors/refine.pyx

@@ -31,13 +31,13 @@ from cuvs.distance_type cimport cuvsDistanceType
 from pylibraft.common import auto_convert_output, device_ndarray
 from pylibraft.common.cai_wrapper import wrap_array
 from pylibraft.common.interruptible import cuda_interruptible
-from pylibraft.neighbors.common import _check_input_array
 
 from cuvs.distance import DISTANCE_TYPES
 
 from cuvs.common.c_api cimport cuvsResources_t
 
 from cuvs.common.exceptions import check_cuvs
+from cuvs.neighbors.common import check_input_array
 
 
 @auto_sync_resources